Per RFC4898, they count segments sent/received
containing a positive length data segment (that includes
retransmission segments carrying data). Unlike
tcpi_segs_out/in, tcpi_data_segs_out/in excludes segments
carrying no data (e.g. pure ack).
The patch also updates the segs_in in tcp_fastopen_add
On ven., 2016-03-04 at 15:57 -0800, Martin KaFai Lau wrote:
> diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
> index 4c8d58d..c9b576f 100644
> --- a/net/ipv4/tcp_ipv4.c
> +++ b/net/ipv4/tcp_ipv4.c
> @@ -1540,6 +1540,7 @@ int tcp_v4_rcv(struct sk_buff *skb)
> const struct iphdr *iph;
